Use set notation to describe the shaded regions in each Venn diagram.

C1.1 Identify and use natural numbers, integers (positive, negative and zero)

C1.10 Give appropriate upper and lower bounds for data given to a specified accuracy. (e.g. measured lengths.)

C1.11.1 Demonstrate an understanding of ratio and proportion. (To include numerical problems involving direct and inverse proportion.)

C1.11.2 Calculate average speed. (Use ratio and scales in practical situations.)

C1.11.3 Use common measures of rate. (Formulae for other rates will be given in the question e.g. pressure and density.)

C1.12.1 Calculate a given percentage of a quantity.

C1.12.2 Express one quantity as a percentage of another.

C1.12.3 Calculate percentage increase or decrease.

C1.13.1 Use a calculator efficiently.

C1.13.2 Apply appropriate checks of accuracy.

C1.14.1 Calculate times in terms of the 24-hour and 12-hour clock.

C1.14.2 Read clocks, dials and timetables.

C1.15 Calculate using money and convert from one currency to another.

C1.16.1 Use given data to solve problems on personal and household finance involving earnings, simple interest and compound interest. (Includes discount, profit and loss.) (Knowledge of compound interest formula is required.)

C1.16.2 Extract data from tables and charts.

C1.17 Extended curriculum only.

C1.2.1 Understand notation of Venn diagrams.

C1.2.2 Definition of sets

C1.3 Calculate with squares, square roots, cubes and cube roots and other powers and roots of numbers.

C1.4 Use directed numbers in practical situations.

C1.5 Use the language and notation of simple vulgar and decimal fractions and percentages in appropriate contexts. Recognise equivalence and convert between these forms

C1.6 Order quantities by magnitude and demonstrate familiarity with the symbols

C1.7 Understand the meaning of indices (fractional, negative and zero) and use the rules of indices. Use the standard form A × 10n where n is a positive or negative integer, and 1 ⩽ A < 10.

C1.8 Use the four rules for calculations with whole numbers, decimals and fractions (including mixed numbers and improper fractions), including correct ordering of operations and use of brackets. (Applies to positive and negative numbers.)

C1.9 Make estimates of numbers, quantities and lengths, give approximations to specified numbers of significant figures and decimal places and round off answers to reasonable accuracy in the context of a given problem.